Tension device for textile machines



June 25, 1935. sT. CLAIR LAKE TENSION DEVICE FOR TEXTILE MACHINES Filed Jan. 26, 1934 5 Sheets-Sheet l Gttorneg June 25, 1935. ST CLAIR LAKE 2,005,942

TENSION DEVICE FOR TEXTILE MACHINES Filed Jan. 26, 1954 5 Sheets-Sheet 2 June 25, 1935. sT. CLAIR LAKE TENSION DEVICE FOR TEXTILE MACHINES Filed Jan. 26, 1934 3 Sheets-Sheet 3 3nnentor SICIeSr Lake Patented June 25, 1935 UNITED STATES PATENT OFFICE TENSION DEVICE FOR TEXTILE monmas SLCIaii-Lake, Poughkeepsie, N. Y. I Application January, 1934, Serial No. 708,379

4 Claims. (Cl. 819) This invention relates to a tension device for tional movement both over the tension bar and textile machines, and more particularly to that the adjacent guide roller. class known as bleaching, dipping and dyeing Another object of the invention is to provide tanks where textile fabric is carried from a supm an wh r y throu h the urvature of the tenr; ply roll through the liquid in the tank and is sion bar the fabric will tend to be guided and then either rolled upon a take off roll, or the kept to the center of the rollers in the same movement is reversed and the fabric is again manner thatabelt acts with respecttoacrowned carried through the tank of liquid, and this oppulley. oration may be repeated many times depending With these and other objects in View, my inin upon the requirements. vention consists in certain novel construction The present method for carrying out this opand combination of parts as will hereinafter be eration requires that the fabric be carried from fully described and claimed and also illustrated the supply roll over a small roller and in fricn e p y g drawings Which form a tional contact with a bar located adjacent to the part hereof and in which like figures of referuid in the tank and up to another friction bar views, and it is understood that slight cha s and small roller to the take off roller. may be made without departing from the spirit These friction bars being for the purpose of Of the invention.

removing the excess liquid from the fabric and n the d awings! 0 removing the wrinkles and serving as a guide to Figure 1 is a Side elevation of the device shown the travel of the fabric, but it has been found s attached to a tank (shown in section) and that the relation between the bar and the small av ng pp and pp y and take off T0118 roller must be adjusted or changed depending of fabric indicated by broken lines. upon the material that is being treated, and also Figure 2 is a similar view of the same in a that the bars should be curved outwardly from tilted position owing to the supply roll becoming 25 the roller and that this curve should vary with smaller and the take off roll increasing in diamedilferent materials to be treated, all of which ter. are not possible with the machines now in use Figure 3 is a top plan view of the same. for this purpose, Figure 4 is a top plan view partly in section The object of the present invention is to pro- 0f the tension bars and their mounting and oper- 30 vide a device for attachment to such tanks whereating mechanism. by the relative position of the friction bars with Fi 5 iS an e V w Of t e dev ce as mountrespect to the small guide rollers may be changed d in e ta W ch is S own in Section. quickly and easily and without stopping the op- Figure 6 is-a detail cross sectional view of one eration of the machine; so that the operator may of the guide rol e s and tension bar, S owing 35 make the proper adjustments to obtain the best their relation to each other. 7 results and for different materials. Figure 7 is a detail view of one of the bearin Another object of the invention is to provide b s Showing t means fo locking the in a device of this kind means whereby the guide roller.

curvature of the friction or tension bars may Figure 8 is a detail side view of the same. 40

be varied to. accommodate the requirements for Referring to the drawings: different fabrics and materials to insure the best The usual tank is indicated by the numeral 10 results. and is formed with the side edges H, to which Another object of the invention is to provide are secured the supports I2 for the shafts l3 and means whereby as the fabric is transferred from I! which carry the supply roll of fabric l5 and 45 the supply roller to the take off roller, the dethe take of! roll of fabric l8; these shafts being vice will tilt within the tank and thus tend to rotated in some suitable manner by the pulleys keep the roller adjacent the take off roll apl7 and belts I8, or in any suitable manner so that proximately the same distance from this roll at their direction of rotation may be reversed at all times and as the diameter of the roll inwill by the operator. 50 creases. My invention comprises a pair of bearings 19 Another object of the invention is to provide attached to the tank edge II by the bolts 20 and means whereby the rotation of either or both formed with the alined bearings within which of the guide rollers may be prevented if desired are secured the stub shafts 2|, upon which are so that the fabric is drawn with a sliding fricmounted the members 22 by the caps and bolts 23 55 n small roller, and from there down into the liqnce r f r to corresponding p r in l of he 15 and 2 in such a manner that said members 22 can be rocked upon the shafts 2|.

Said members 22 are formed with a longitudinal opening within which are secured the side supporting bars 25 which are here shown as rectangular in cross section, but which may be round or of any desired shape, material and size.

Upon said bars 25 and at each side of the member 22 and spaced therefrom are a pair of similar members 28 held in place by the screws 27, and formed with the depending arms 28 terminating in a head 29 to which is secured by the screw 33 a bearing member having a rotatable transverse shaft 3l upon which is mounted the lower guide roller 32 which is submerged in the liquid within the tank.

Adjacent the outer ends of the bars 25 are mounted by the set screws in an adjustable manner the bearing members 33 which are formed on their inner sides with bearings for the ends of the transverse guide roller shafts 34 which carry the guide rollers 35. V

The lower part of said bearing members 33 are provided with the cap 33 secured by the screws 31? to form a guide way 38 within which is slidably mounted a bearing block 39 having a threaded bore for the adjusting screw it which is journaled in the ends 4! of the member 33 and provided at oneend with the nut 42 and at the other end with the hand wheel 43 for the purpose of moving or adjusting said bearing block 39 within said guide way; said bearing block 39 being locked in position by a bolt i l threaded therein and clamping a washer 45 against the member 36; V

The inner ends of the bearing blocks 33 extend from the inner sides of the members 33 and are provided with the sockets 45 for the turned ends of the tension bars 47 which are mounted therein and which extend transversely across the tank in normal parallel relation to the guide rollers 35 and spaced therefrom, said spacing being regulated by the position of the bearing blocks 39.

For bowing or curving these tension bars 41 outward with respect to the guide rollers 35, I

have provided the shoes 58 which are attachedto said bars 4? by the screws 43 and which are formed with the studs 55 and-to one of which is attached by the pin 5| the end of a tubular bar 52 formed with the internal threads 53; while to the other shoe 33 is attached by the pin 54 the socket 55 which is formed with a side slot 55 within which is placed an adjusting screw 51' which is threaded into the inner end of a similar tubular bar 58 to the bar 52, in such a manner that by loosening said screw 57 said bar 58- will have a limited sliding movement within the socket 55; this bar 58 is also formed with the internal threads 59 but of an opposite lead to those in the bar 52; and within these bars 52 and 58 is threaded a double ended screw 55 having the right and left handthreads SI and 5'2 and the hand wheel 63 secured thereon by the pin 9, and by the rotation of the hand wheel 53 it will be seen that the tension bars 41 will be bowed outward or curved as shown in Figure 4.

Forquick adjustment of the device, the locking screw 5? is loosened allowing the bar 58 to slide within the socket 55 thus relieving the pressure exerted on the tension bars 41 and permitting the hand wheel to be quickly rotated and the position of the bearing blocks 39 to be changed in the bearing members 33.

During the treatment of certain fabrics it may be desired to prevent the rotation of the guide rollers 35 so that the fabric is drawn over both the guide roller 35 and the tension bar 41 in frictional contact therewith, and to accomplish this, I have provided the members 33 with the two cars 64 between which is pivoted a latch 65 on the pin 35; said latch 65 being formed with a bent end 61 which when lowered will enter a slot 68 formed in the edge of the guide roller 35 and prevent the rotation of said roller, but which may be disengaged when desired.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent, is:

1. In a tension device for textile machines and in combination with a tank, having alined bearings mounted thereon, of a frame mounted therein and capable of being rocked, a depending portion attached to said frame within said tank, a transverse roller carried thereby and having free rotary movement, bearing members mounted on the outer ends of said frame and formed with bearings, transverse shafts mounted therein carrying guide rollers, bearing blocks adjustably mounted in said members and means for adjusting the same, transverse tension bars mounted in said bearing blocks adjacent said guide rollers and means for bowing or curving said tension bars with relation to said guide rollers.

2. In a machine for immersing textile material in a liquid and comprising in part of a tank, of a supporting frame pivotally mounted to said tank, a depending portion extending within said tank, a transverse roller carried thereby, transverse guide rollers adjustably mounted adjacent the ends of said supporting frame, tension bars mounted adjacent thereto, means for adjusting said tension bars with relation to said guide rollers, and means for curving said tension bars outwardly from said guide rollers;

3. In a device of the class described, the combination with a tank having beam supports, of a frame pivotally mounted thereon and having a depending portion extending downwardly within said tank, a transverse roller mounted in said depending portion, bearing members adjustably mounted on said frame adjacent the ends thereof, parallel rollers journaled in said members, ten sion bars mounted in said members below said rollers, means for adjusting the distance between said bars and said rollers, and means for curving said tension bars.

i. In a machine for immersing textile material in a liquid and comprising in part of a tank, of a supporting frame pivotally mounted to said tank, a depending portion extending within said tank, a transverse roller carried thereby, transverse guide rollers adjustably mounted adjacent the ends of said supporting frame, tension bars mounted adjacent thereto, means for adjusting said tension bars with relation to said guide rollers, means for curving said tension bars outwardly from said guide rollers, and means for temporarily preventing the rotation of said guide rollers.

ST. CLAIR LAKE. 

